CLC/TS 50658:2025
(Main)Cable management systems (CMS) providing support for cables with intrinsic fire resistance
Cable management systems (CMS) providing support for cables with intrinsic fire resistance
This document specifies test methods for cable management systems (CMS) intended to provide support for intrinsic fire-resistant cables in order to determine their abilities to maintain the function of electrical power cables and signal/control cables for a specified duration when subjected to fire under defined conditions. This document establishes a non-hierarchical classification for this ability. Additional devices to fix the cable management systems providing fire resistant support (CMS-support) to the building structure for example screws, anchors etc. are not covered by this document. CMS intended to provide support and fire protection for cables are tested according to EN 1366-11. This document does not apply to powertrack systems. NOTE Rules for testing CMS-support for fibre optic cables according to EN 50582 and communication cables according to EN 50289-4-16 are under consideration.
Führungssysteme für Kabel und Leitungen (CMS) zur Verlegung von Kabeln mit intrinsischem Feuerwiderstand
Systèmes de câblage servant à soutenir les câbles à résistance intrinsèque au feu
Sistemi za urejanje okablenja (CMS), ki zagotavljajo podporo kablov z notranjo požarno odpornostjo
General Information
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Buy Standard
Standards Content (Sample)
SLOVENSKI STANDARD
01-julij-2025
Sistemi za urejanje okablenja (CMS), ki zagotavljajo podporo kablov z notranjo
požarno odpornostjo
Cable management systems (CMS) providing support for cables with intrinsic fire
resistance
Führungssysteme für Kabel und Leitungen (CMS) zur Verlegung von Kabeln mit
intrinsischem Feuerwiderstand
Systèmes de câblage servant à soutenir les câbles à résistance intrinsèque au feu
Ta slovenski standard je istoveten z: CLC/TS 50658:2025
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
29.060.20 Kabli Cables
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL SPECIFICATION CLC/TS 50658
SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION May 2025
ICS 13.220.50; 29.060.20, 91.140.50
supersedes CLC/TR 50658:2022
English Version
Cable management systems (CMS) providing support for cables
with intrinsic fire resistance
Systèmes de câblage servant à soutenir les câbles à Führungssysteme für Kabel und Leitungen (CMS) zur
résistance intrinsèque au feu Verlegung von Kabeln mit intrinsischem Feuerwiderstand
This Technical Specification was approved by CENELEC on 2025-04-07.
CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 50658:2025 E
Contents Page
European foreword . 5
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Fire resistance classification . 10
5 Documentation. 10
6 Rules for test . 11
6.1 Common rules . 11
6.2 CMS-support specific rules . 14
7 Test report . 41
Annex A (normative) Extended application of test results to other assemblies . 43
Annex B (informative) Examples for the calculation of the tensile stress in all vertically oriented
components . 46
Annex C (informative) Additional requirements for vertically running cable installations . 50
Bibliography . 53
Figures Page
Figure 1 — Typical circuit arrangement . 13
Figure 2 — Positioning of thermocouples . 13
Figure 3 — Test arrangement for cable tray system, mesh cable tray system and cable ladder system
Figure 4 — Trapeze system . 16
Figure 5 — Cantilever system with additional support at or near the end of the cantilever bracket . 16
Figure 6 — Cantilever system without additional support and location of the pendants . 17
Figure 7 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
trapeze system (Figure 4) and cantilever system with additional support at or near the cantilever
bracket (Figure 5) . 17
Figure 8 — Exit out of the furnace wall showing additional gaps and the location of mineral wool for
cantilever system without additional support (Figure 6) . 18
Figure 9 — Point loads . 19
Figure 10 — Test arrangement for cable trunking system ceiling mounted . 22
Figure 11 — Examples for arrangements of installations from the ceiling . 23
Figure 12 — Test arrangement for cable trunking system wall mounted . 23
Figure 13 — Examples for arrangements of installations on the wall . 24
Figure 14 — Test arrangement for conduit system and cable ducting system ceiling mounted . 27
Figure 15 — Examples for arrangements of installations from the ceiling . 27
Figure 16 — Test arrangement for cable ducting system and conduit system wall mounted . 28
Figure 17 — Examples for arrangements of installations on the wall . 28
Figure 18 — Test arrangement for cable cleats below a ceiling . 31
Figure 19 — Typical arrangement for loading a ceiling mounted cleat with mandrels . 32
Figure 20 — Test arrangement for cable cleats designed for use with cable tray lengths, mesh cable
tray lengths, cable ladder lengths and cable trunking lengths below a ceiling . 33
Figure 21 — Typical arrangements for loading a ceiling mounted cable cleat designed for use with
cable tray lengths, mesh cable tray lengths, cable ladder lengths and cable trunking lengths . 34
Figure 22 — Test arrangement for cable cleats on a wall . 35
Figure 23 — Typical arrangement for loading a wall mounted cleat with mandrels. 36
Figure 24 — Test arrangement for cable cleats designed for use with cable tray length, mesh cable
tray length, cable ladder length and cable trunking length on a wall . 37
Figure 25 — Typical arrangements for a wall mounted cable cleat designed for use with cable tray
lengths, mesh cable tray lengths, cable ladder lengths and cable trunking lengths . 38
Figure 26 — Horizontal or inclined ceilings . 40
Figure 27 — Horizontally running fire resistant installations on vertical or inclined wall . 40
Figure 28 — Vertically running fire resistant installations on vertical or inclined walls . 41
Figure A.1 — Examples A to G for assemblies of cable tray system, mesh cable tray system and cable
ladder system supported by pendant and cantilever bracket . 43
Figure A.2 — Examples A to G for assemblies of cable trunking system supported by pendant only . 44
Figure A.3 — Examples A to G for assemblies of cable trunking system supported by pendant and
cantilever bracket . 44
Figure A.4 — Examples A to G for assemblies of cable ducting system and conduit system supported
by pendant only . 45
Figure A.5 — Examples A to G for assemblies of cable ducting system and conduit system supported
by pendant and cantilever bracket . 45
Figure B.1 — Examples A to G for assemblies of cable tray system, mesh cable tray system and cable
ladder system supported by pendant, cantilever bracket, and additional support . 46
Figure C.1 — Example for effective support methods . 51
Figure C.2 — Example for effective support methods . 52
Tables Page
Table 1 — Fire resistance classifications for CMS providing support . 10
Table 2 — Minimum test duration . 11
Table 3 — Minimum number of point loads per span . 19
Table 4 — Limiting stress values . 20
Table 5 — Extended applications of test arrangements according to Figures 11 and 13 . 25
Table A.1 — Results for extending the test results to other assemblies according to examples in
Figures A.1 to A.5 . 45
European foreword
This document (CLC/TS 50658:2025) has been prepared by CLC/TC 213 “Cable management systems”.
This document supersedes CLC/TR 50658:2022.
— New figures have been added;
— In the ‘CMS-support classification’ column, the abbreviations P 15 to P 120 have been changed to Pcms
15 - Pcms 120;
— In the ‘Classification of cables with intrinsic fire resistance which can be supported’ column, the
abbreviations P 15 to P 120 have been changed to Pca 15 - Pca 120;
— The abbreviations P changed to Pcms and Pca;
— New Annex C added.
According to the present status of EN 13501-3, the P classifications listed in Table 1 and Table 2 as well as in
the rest of the text are exclusively assigned to fire protection systems for cable systems and associated
components in accordance with EN 1366-11. Furthermore, EN 13501-3 specifies the following classes for
unprotected electrical cables and wires with their own fire protection properties:
— Pca for cables in accordance with EN 50577, EN 50582 and EN 50289-4-16;
— PHca for cables with small diameters in accordance with EN 50200, EN 50582 and EN 50289-4-16.
To clearly differentiate between the classification in EN 13501-3, the class Pcms is used in this document.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A complete
listing of these bodies can be found on the CENELEC website.
Introduction
The purpose of the test detailed in this document is to evaluate the ability of a Cable Management System
(CMS) to support cables with intrinsic fire resistance enabling them to maintain their function for a specified time
period whilst exposed to fire. The test is conducted under conditions of a standard time/temperature curve when
the CMS is installed in a standardized representative condition.
This document for cable management products is used for electrotechnical purposes. It relates to the Council
Directives on the approximation of laws, regulations and administrative provisions of the Member States relating
to Low Voltage Directive 2014/35/EU through consideration of the essential requirements of this Directive.
This document is supported by separate standards to which references are made.
1 Scope
This document specifies test methods for cable management systems (CMS) intended to provide support for
intrinsic fire-resistant cables in order to determine their abilities to maintain the function of electrical power cables
a
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